Format results
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Quantum Quenches in Thermodynamic Limit
Marcos Rigol - Pennsylvania State University
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Dynamical analogue quantum simulators
Jens Eisert - Freie Universität Berlin
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Light-Cone Effects after Quantum Quenches and Excitations at Finite Entropy
Fabian Essler - University of Oxford
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Gapless spin liquids in frustrated Heisenberg models
Federico Becca - SISSA International School for Advanced Studies
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Localization and topology protected quantum coherence at the edge of 'hot' matter
Ehud Altman - University of California, Berkeley
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Many-body mobility edge in a mean-field quantum spin-glass
Arijeet Pal - Harvard University
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A Rigorous Result on Many-Body Localization
John Imbrie - University of Virginia
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What can we learn from modifing gravity ?
Claudia de Rham - Imperial College London
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Quantum Quenches in Thermodynamic Limit
Marcos Rigol - Pennsylvania State University
Studies of the quantum dynamics of isolated systems are currently providing fundamental insights into how statistical mechanics emerges under unitary time evolution. Thermalization seems ubiquitous, but experiments with ultracold gases have shown that it need not always occur, particularly near an… -
Dynamical analogue quantum simulators
Jens Eisert - Freie Universität Berlin
Complex quantum systems out of equilibrium are at the basis of a number of long-standing questions in physics. This talk will be concerned on the one hand with recent progress on understanding how quantum many-body systems out of equilibrium eventually come to rest, thermalise and cross phase… -
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Light-Cone Effects after Quantum Quenches and Excitations at Finite Entropy
Fabian Essler - University of Oxford
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Long-time behavior of periodically driven isolated interacting quantum systems
Luca D'Alessio - Boston University
We show that generic interacting quantum systems, which are isolated and finite, periodically driven by sudden quenches exhibit three physical regimes. For short driving periods the Floquet Hamiltonian is well approximated by the time-averaged Hamiltonian, while for long periods the evolution… -
Gapless spin liquids in frustrated Heisenberg models
Federico Becca - SISSA International School for Advanced Studies
We present our recent numerical calculations for the Heisenberg model on the square and Kagome lattices, showing that gapless spin liquids may be stabilized in highly-frustrated regimes. In particular, we start from Gutzwiller-projected fermionic states that may describe magnetically disordered… -
Localization and topology protected quantum coherence at the edge of 'hot' matter
Ehud Altman - University of California, Berkeley
Topological phases are often characterized by special edge states confined near the boundaries by an energy gap in the bulk. On raising temperature, these edge states are lost in a clean system due to mobile thermal excitations. Recently however, it has been established that disorder can localize an… -
Many-body mobility edge in a mean-field quantum spin-glass
Arijeet Pal - Harvard University
Isolated, interacting quantum systems in the presence of strong disorder can exist in a many-body localized phase where the assumptions of equilibrium statistical physics are violated. On tuning either the parameters of the Hamiltonian or the energy density, the system is expected to transition into… -
A Rigorous Result on Many-Body Localization
John Imbrie - University of Virginia
I will discuss a proof of many-body localization for a one-dimensional spin chain with random local interactions. The proof depends on a physically reasonable assumption that limits the amount of level attraction in the system. I construct a sequence of local rotations that completely diagonalizes… -
What can we learn from modifing gravity ?
Claudia de Rham - Imperial College London
I will review models of modified gravity in the infrared and show how extra degrees of freedom present in these theories get screened via the Vainshtein mechanism. That mechanism comes hand in hand with its own share of peculiarities: classical superluminalities, strong coupling and perturbative non… -